Maven repository for commons-statistics-inference

Hi all,

I need to compute the Fisher exact test and I'd like to use the 
implementation in commons-statistics-inference:

https://github.com/apache/commons-statistics/blob/master/commons-statistics-inference/src/main/java/org/apache/commons/statistics/inference/FisherExactTest.java

However, org.apache.commons:commons-statistics-inference:1.0 is not 
published in the Central Maven repository, only distribution, which is a 
core module on which inference depedends.

How is it? Is it somewhere else? Should I include something else in my 
project?

Thank you in advance,
Marco